Which of the following is correct regarding Shale Oil and Gas?
I. Shale gas & oil is defined as natural gas & oil from shale formations.
II. Older shale wells were primarily horizontal.
Answer
The correct answer is C: Only I. Statement I is correct — shale gas and oil come from shale formations. Statement II is incorrect because older shale wells were primarily vertical, not horizontal; horizontal drilling became widespread only in the 1990s-2000s.
A.Only II
B.Neither I nor II
C.Only I✓ Correct
D.Both I and II
Explanation
Statement I is correct — shale gas and oil come from shale formations. Statement II is incorrect because older shale wells were primarily vertical, not horizontal; horizontal drilling became widespread only in the 1990s-2000s.
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